^^ Steve speaks the truth.
I used to think the same way, and I used to stealth all the time. But now I really *hate* stealthing. The standing still. The not being able to say a single word. The fact that if I move my head, the recording is affected. The fact that a jackass talking next to me will DEFINITELY be on my recording. It really isn't fun most of the time, and it results in really shitty tapes a lot of the time, too.
Nowadays most bands other than the really big major label stadium type bands (your U2s, Kings of Leons, that kind of thing) will pretty much let you record if you just ask nicely.
Open taping is better for your enjoyment and better for your friends, since you can still (within reason, of course) talk to them, have some beers, etc. And it goes without saying that your recordings (generally) will be infinitely better. That's not to say that you can't (and I have) make a killer FOB recording with mics in a hat or whatnot - but those pulls are harder to get.
The additional set up time of running open is a pain, and you have to be more respectful of the venue and their wishes, but that's all fine by me. I like going to a show and feeling like what I'm doing is appreciated or at least sanctioned, rather than like I'm some sort of shady character trying to scam somebody.